• Adirondacks Exhibition, juror of selection, 2007
  • Alaska Watercolor Society, Juror and Judge, 2018
  • American Watercolor Society Invited Juror, 2000
  • American Watercolor Society Elected Juror, 2003
  • American Watercolor Society Awards Judge, 2005
  • American Watercolor Society Awards Judge, chairman 2011
  • American Watercolor Society, Public Demo 2023
  • Artist Magazine 22nd Annual Art Competition, Experimental Cat., Judge, 2005
  • Arts North International 27th Exhibition, Hopkins Art Center, 2022
  • California Watercolor Association, 50th Anniversary Exhibition, juror 2019
  • California Watercolor Association, Juror and Judge, 2009
  • Central Minnesota Art League Judge, 2002
  • First International Watercolor Biennale Pakistan “Pearls of Peace” 2016
  • Florida Watercolor Society Exhibition and Convention, 2011, juror and judge
  • Fort Myers Beach Art Association, Juror and Judge, 2010
  • Fourth International Watercolor Contest of the International Watercolor Society, 2014
  • Georgia Watercolor Society Members’ Show, juror and judge, 2007, 2022
  • Georgia Watercolor Society Exhibition, 2023
  • Gibson County Visual Arts Exhibition, 2011
  • International Masters of Watercolor Assn Biennale, juror, 2019
  • International Masters of Watercolor Association IMWA,  Second Universal Watercolor Exposition, juror and judge 2020, 2021, 2022
  • IMWA, European Impressions International Exhibition 2021
  • Iowa Watercolor Society Juror & Judge, 2006
  • Indianapolis Art Club Exhibition, judge and juror, 2008
  • International Watercolor Society, juror, 2014
  • International Watercolor Society Canada, 2016
  • International Watercolor Society Young Artists Watercolor Contest, 2014
  • IWS Canada International Exhibition, Juror, 2016
  • IWS South Africa, Judge, 2019
  • Kansas Watercolor Society Great 8 Exhibition, 2004
  • Kentucky Watercolor Society, judge and juror, 2013
  • Louisiana Watercolor Society, Judge and Juror, 2006 and 2018
  • Mid-Atlantic Watercolor Society, Judge and Juror, 2010
  • Mid-Southern Watercolorists, Juror and Judge, 2009
  • Midwest Watercolor Society, Juror and Judge, 2003
  • Minnesota State Fair Juror and Judge, 2000, 2012
  • Minnesota Watercolor Society Judge, 2002 and 2018
  • Missouri Watercolor Society, Juror, 2009 and 2017
  • Museum of Wisconsin Art, West Bend, Biannual, Juror and Judge, 2022
  • Museo Nacional de la Acuarela Watercolor Society Annual Exhibition, Mexico City, 2021
  • National Watercolor Society Juror, 2003
  • National Watercolor Society 94th International Exhibition, Juror 2014
  • National Watercolor Society 100th International Exhibition, Juror 2020
  • New England Watercolor Society, Juror and Judge, 2010
  • New Jersey Watercolor Society, Juror, 2015
  • New Mexico Watercolor Society, Juror and judge, 2019
  • Niagara Frontier Watercolor Society Exhibition, 2014
  • North Carolina Watercolor Society, Juror and Judge, 2012
  • Northern Plains Watercolor Society Judge, 2002
  • Northern Arizona Watercolor Society Juror and Judge, 2013
  • Northstar Watercolor Society, Judge, 2002
  • Northwest Watercolor Society “Waterworks 2011”, juror and judge
  • Ohio Watercolor Society, Juror and Judge, 2010
  • Oklahoma Watercolor Society Exhibition, juror of selection and judge, 2008
  • Oregon Watercolor Society National Exhibition, Judge and Juror, 2009
  • Paramount Arts Trust Exhibition, Judge, 2010
  • Pakistan Pearls of Peace International Watercolor Exhibition, Juror and Judge, 2016
  • Pennsylvania Watercolor Exhibition, juror of selection, 2007
  • Pennsylvania Watercolor Exhibition, juror, 2019
  • Philadelphia Watercolor Society, 106th International Exhibition, 2006
  • Philadelphia Watercolor Society, 120th International Exhibition  Works on Paper 2020
  • Pikes Peak Watercolor Society, 2011
  • Pittsburgh Watercolor Society 75th Aqueous Open, Juror and Judge 2020
  • Red River Watercolor Society Judge and Juror, 2003
  • Richeson 75 International Landscape Exhibition 2007, judge
  • Rhode Island Watercolor Society Members’ Show, 2004
  • Rhode Island Watercolor National Exhibition, Judge and Juror, 2006
  • Rocky Mountain Watermedia Exhibition, 2004
  • San Diego Watercolor Society, Juror and Judge, 2009 and 2018
  • Sangamon Watercolor Society, Judge, 2010
  • Scholastic Artists and Writers Competition, Judge and Juror, 2002 and 2004
  • Shenzhen Biennial, Juror and Judge, Shenzhen China, 2013
  • Shenzhen International Watercolor Biennial, 2013-2014
  • Signature American Watermedia Exhibition, 7th Annual, Fallbrook CA 2016
  • South Carolina Watermedia Society, Juror and Judge, 2007
  • Society of Acrylic Painters, Judge and Juror, 2010
  • Southern Arizona Watercolor Guild, Juror and Judge, 2016
  • Southern Watercolor Society, Juror and Judge, 2018
  • St. Louis Watercolor Society 9th Annual Exhibition, juror of selection and judge, 2008
  • Tennessee Watercolor Society Annual Exhibition, 2011, juror and judge
  • Tennessee Watercolor Society Annual Exhibition, 2016, juror and judge
  • Transparent Watercolor Society of America, juror and judge, 2018
  • Universal Watercolor Exposition – 1st Annual, judge 2018
  • Utah Watercolor Society, judge and juror, 2014
  • Vermont Watercolor Society, judge and juror, 2014
  • Virginia Watercolor Society, juror and judge, 2019
  • Watercolor Art Society Houston Members’ Show, juror and judge, 2007
  • Watercolor Art Society of Houston, 2011
  • Watercolor Artist Annual Competition 2018, judge
  • Watercolor Magic Annual Competition, Landscape Category, Judge, 2005
  • Watercolor Society of Indiana Annual Juried Exhibition, Juror and Judge, 2016
  • Watercolor Society of Oregon, Juror and Judge, 2009
  • Watercolor Society of South Africa, Judge, 2021
  • Watercolor West, judge and juror, Brea CA 2017
  • Western Colorado Watercolor Society, Judge and Juror, 2005
  • Western Federation Exhibition, Judge and Juror 2007
  • Wisconsin Visual Artists Biennial Exhibition, 2021
  • World of Watercolor 2016 Seventh Annual Signature American Watermedia Exhibition, juror and judge 2016
  • Wyoming Watercolor Society, Juror and Judge, 2013